Fluke PQ400 Specifications
TECHNICAL DATA
Fluke PQ400 Electrical
Measurement Window
The Fluke PQ400 Electrical Measurement Window enables the
connection of three phase measurement equipment to energized
panels, without the need to open the panel door, or wear
supplemental personal protective equipment (PPE)
Compliance without compromise. Safety without
sacrifice.
The Fluke PQ400 gives you access to the critical power quality and
energy data you need, all while decreasing testing time and help-
ing you to maintain safety.
• Reduce the risk of arc-flash and electrocution, while increasing
the safety of your personnel
• Decrease maintenance costs and reduce downtime by making
critical power quality and energy measurements without
opening the panel door, enabling logging and monitoring at any
time—without disrupting operations
• Reduce work permit requirements and processes by reducing
the hazards associated with taking measurements on open
panels, saving time and effort
• Increase measurement efficiency and reduce the need for arc-
flash PPE, saving time, increasing efficiency and increasing
operator comfort
REDUCED RISK
Permanently installed voltage and
current connections can be accessed
without opening the panel door
INCREASED EFFICIENCY
Quickly connect your logger
or analyzer and begin taking
measurements faster than ever
EASY I N S TA LLATION
A standard step drill bit and
electro-hydraulic hole punch
provide the simple means to quickly
mount the window in the panel
Features
• Permanently connected voltage and current sensors located
inside the electrical panel allow you to make power quality and
energy measurements using the external access points without
opening the panel door, reducing operator risk
• Voltage and current connections for three-phase voltages,
neutral and ground cover most measurement scenarios
• Automatic probe detection for Fluke 1740 and 1730 series power
quality and energy loggers and compatible clamps, eliminates
the need to open cabinet to check the clamp model
• Full 360 degree rotation allows the PQ400 window to be
oriented in any direction
• Simple installation using a step drill bit and electro-hydraulic
hole punch (114.3 mm, 4.5 inch diameter)
• CAT IV, 600V and CATIII 1,000V rating according to
IEC61010 -2-30
• Compatibility with standard 4mm shrouded safety-socket
voltage test leads makes it easier to make voltage connections,
increases safety by reducing the risk of accidently touching live
electrical components, and reduces the need for purchasing
specialized voltage leads
Comply with local and national safety codes. Use personal protective equipment
(approved rubber gloves, face protection, and flame-resistant clothes) to prevent shock
and arc blast injury wh0ere hazardous live conductors are exposed.
How it works
The Fluke PQ400 Electrical Measurement Window is a
permanently installed interface that provides technicians with
near instant access to electrical panels for making critical power
quality and energy measurements. The PQ400 installs using a
standard step drill bit and electro-hydraulic hole punch (114.3
mm, 4.5-inch hole diameter), and allows users to make threephase voltage, current and ground connects covering most
measurement configurations. Once installed users can simply
unlock the window cover, lift the lid, and connect the voltage
leads of the logger or analyzer. Then, connect the leads for the
current sensors and start making critical measurements. Once
complete, simply remove the voltage and current connections from
the front panel interface and lock the window lid, leaving the
internal connections in place for future use.
Specifications
General specifications
Maximum voltage between any voltage terminal and
earth ground
Maximum voltage between any current terminal and
earth ground
Safety
General IEC 61010-1: pollution degree 2
Measurement IEC 61010-2-030: CAT IV 600 V / CAT III 1000 V
Dimensions
Outside 148 mm x 187 mm x 23 mm (W x H x D) (148 mm x 370 mm
Inside 140 mm x 158 mm x Di (W x H x D)
Supported electrical enclosures
Enclosure UL 50/NEMA environmental type 1 (Type 12 when PQ400
Panel thickness Max. 3.5 mm (10 gauge)
Environment
Operating/storage temperature -25 °C to 60 °C (-13 °F to 140 °F)
Humidity 10 % to 90 % in dependency of temperature according to
Altitude
Operating 2,000 m (up to 4000 m derate to CAT II 1000 V, CAT III 600
Storage 12 000 m
Ingress protection
Rating IEC 60529: IP67 with cover closed, IP50 with cover opened
Vibration IEC 60068-2-6 , MIL-PRF28800F: Random vibration class 2
Weight 2.1 kg (4.6 lb)
1000 V
30 V
x 19 mm with cover opened)
Di = 58 – thickness of panel door in mm
cover is closed)
IEC 60721-3-3 Class 3K6 (modified):-25 °C to 35 °C: 10 %
to 90 %, 50°C: max. 35 %, 60°C: max. 23 %
V, CAT IV 300 V)
and all connectors attached
2 Fluke Corporation Fluke PQ400 Electrical Measurement Window
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